Update DecisionTree.cs

Draco-lang · Oct 15, 2023 · 055c60b · 055c60b
1 parent 32a1585
commit 055c60b
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/Draco.Compiler/Internal/FlowAnalysis/DecisionTree.cs b/src/Draco.Compiler/Internal/FlowAnalysis/DecisionTree.cs
@@ -391,7 +391,9 @@ private void Build(Node node)
         // Specialize for each of these cases
         foreach (var group in coveredPatterns)
         {
-            foreach (var (pat, guard) in group)
+            var pat = group.Key;
+            var guards = group.Select(p => p.Guard).Distinct();
+            foreach (var guard in guards)
             {
                 // Specialize to the pattern
                 var child = this.Specialize(node, pat);